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37 Chapter 2 ■ Programming with the EV3 Language Figure 2-7. The Programming Page for the EV3 Software Below the Programming Canvas is the Programming Palette, which organizes the programming blocks in six different categories: 38 • Green (Action): Programming blocks to control the motors, display, sounds, and Brick Status Lights. • Orange (Flow Control): In addition to the Start programming block, this allows for some interesting programming moves like Wait, Loop, Switch, and Loop Interrupt. I will explain them all in more detail later in this chapter, but know that these are the blocks that wait on the sensors.

If you want, you can skip to that chapter and learn about them, but I will briefly introduce these blocks here. Display allows the screen to change what is shown on its display, and it can range from text to specific shapes. There is a way to even download your own shape, but this will be discussed in a later chapter. In addition to the motion, the EV3 Brick allows the user to makes some good sound as well. The EV3 Sound Brick comes with a variety of sounds that give an impressive dimension of audio in your project.

Note that you can have them spinning at different speeds, and even different directions. Like the Move Steering, you can produce some very interesting results with just two Large Motors. You can see some examples in Figure 2-12. 43 Chapter 2 ■ Programming with the EV3 Language Figure 2-12. Examples of the Move Tank programming blocks in action Like the Move Steering, I will discuss how to use Move Tank practically with a vehicle in the next chapter. For now, let us discuss the last three green programming blocks.